1992 Isuzu Pu'p High Idling

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Ray - 05 Dec 2007 15:17 GMT

My 2.3 ltr engine is idling high and it just recently started doing this. I
tried adjusting the throttle rest adjustment screw but it did nothing for
it. I should note that the carburetor has had a moderate miss to it for
some time now. I took the filter element and housing off and it still revs
high. I checked for proper connections of all vaccum lines. I have an
aftermarket air conditioner that was installed in 2000. The engine has
111,000 miles on it and does not smoke.

Can anyone offer some advice.

Thanks,

Ray

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John S. - 05 Dec 2007 23:21 GMT

> My 2.3 ltr engine is idling high and it just recently started doing this. I
> tried adjusting the throttle rest adjustment screw but it did nothing for
> it. I should note that the carburetor has had a moderate miss to it for
> some time now.

The carburetor has a miss to it????

> I took the filter element and housing off and it still revs
> high. I checked for proper connections of all vaccum lines. I have an
> aftermarket air conditioner that was installed in 2000. The engine has
> 111,000 miles on it and does not smoke.

Likely a vacuum leak or a gummed up carb. Also check the choke to see
if it is opening completely and check the high idle linkage.

> Can anyone offer some advice.
>
> Thanks,
>
> Ray

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Ray - 06 Dec 2007 02:19 GMT

Thanks John, I'll look into your recomendations.

Ray

>> My 2.3 ltr engine is idling high and it just recently started doing this.
>> I
[quoted text clipped - 17 lines]
>>
>> Ray

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